Refrigeration cabinet



April 1, 1930. H. c, FOLGER I 1,752,553

REFRIGERAT T ON CABINET Filed June 1' 192' 2 Shee+-heef 1 A ril 1, 1930.

H. c. FOLG ER REFRIGERATION CABTNFIT 2 Shams-Sheet Filed June 17 1.92

Patented Apr. 1, 11930 MASSACHUSETTS, ASSIGTTOR, .BY MESNE ASSIGNQ' INC., 01 WAVERLEY, MASSACHUSETTS, A COBPQ- HENRY C. FOLGER, F WALTHAM, MENTS, TO WALTHAM SYSTEM, RATION OI MASSACHUSETTS Application filed ,Tune 17,

v The invention tobe hereinafter described relatesto refrigeration, and more particular- 1y to refrigeration of ice cream.

The ice cream manufacturer usually delivers the ice cream to his customers in cylindrical cans, since this form is convenient to handle and is easy to clean and keep in sani-' tary condition. One of these cans is placed in each refrigerator compartment which is usually square or oblong in horizontal section and of substantial depth.

The refrigeration is accomplished by cartridges containing a chemical compound which freezes at a temperature substantially below 32 F-.,'and desirablyas low as 3 above zero. The cartridges, after being nearly filled with this compound, are closed and placed ,in the freezing room, and after the freezing they are ready to be transported to ficient; refrigeration effect.

the customers and placed in their cabinets.

' A purpose of the present invention is to provide a'highly desirable combination of a refrigeration storage box, an ice cream can, and cartridges formed and associated for ef- These cartridges are of hollow triangular prism form and .have important advantages. They fit well into the corners of the refrigerator compartment in spaces between the ice cream containing can and the walls of the compartment, effective- 1y resist passage of heat into the compartment handled, and can be stacked compactly on and erator compartment.

vide a simple,

"between the coils for freezing the solution in the cartridges. These cartridges and coils are the subject of my copeliding application Serial No. 175,980, filed March 17, 1927, and

support and hold the ice cream containing can and cartridges in proper relation forefiicient refrigeratingieifect.

" i The character of the invention will be best understood by reference to the following derefrigerator of any usual e ice creamcontaining can, can be easily OFFICE nrrmenaarion CABINET 1927. Serial No. 199,588.

scription of an embodiment thereof shown in the accompanying drawings, wherein:

Fig. MS a perspective view of the rack;

Fig. 2 is a plan of a refrigerator compartment showing the disposition of the ice cream coitaining can and the cartridges therein; an

Fig. 3 is a vertical section through one of the refrigerator compartments and part of another.

Referring to the drawings, 1 designates a suitable construction, in the present instance having two compartments 3 and 5, each provided with an annular cover 7 and a cap 9. Each of these compartments is slightly oblong in horizontal section and is sufficiently large to accommodate one ice cream containing can 11 and four cartridges 13. These cartridges are nearly filled with a chemical compound which freezes triangular prism form and have substantial length. Their construction is such that they fit nicely into the corners of the refrigerator compartment, where each has two sides factaining can. The cartridges are desirably placed so as to interfere 'efficiently with'passage of heat into the compartment and the ice cream containing can.

The rack forsupporting and holding the ice cream containing can'and the cartridges in the relation described above, in the present instance is formed of wire and base members 15 and 17 in transverse relation and welded together at their crossing points. Upright loops 19 and 21 rise from the ends of the base members 15 and 17, respectively, and preferably are continuations thereof; Within and welded to the-uprights is aring 23- Then the cartridges are closed comprises wire mg walls of the compartment and a third and longest side which faces the ice cream con-.

locatedup somewhat above the crossing base members. Rests 25 are welded to and project outward from the uprights and are provided with braces '27 welded to the rests andupwill extend from the uprights toward space.

' rior-wall so shaped as rights, both said rests and uprights being conveniently of wire loop form.

In use, the rack is placed into the refrigerator compartment so that one of the base members will extend between diagonally opposite corners, and the other base member will extend between the other diagonally opposite corners of the compartment. The uprights will be spaced a substantial distance from the corners, and the rests and bracfis t e corners.

After the rack has been placed in the compartment as described, the ice cream can may be set into the ring of the rack and be supported by the base members. Then the cartridges may he slid down into the corner spaces of the compartments, and be-supported on the rests. They will be held spaced from the ice cream containing can'by the uprights which are between the can and the cartridges.

The construction of the rack is such that the ice cream can is supported slightly above the bottom of the compartment, and the cartridges are supported a substantial distance above the bottom of the compartment. They extend somewhat above the top of the can.

This relation of the cartridges to the can has been found in practice to provide very efiicient refrigerating effect on the entire contents of the can.

In dispensing the ice cream from the can, the cap 9 is removed, but when it is desired to remove the can or cartridges from the compartments and insert others therein, the cap and cover are both removed.

The primary advantages of the herein described structure proceed from the the fact that the individual cartridges all fit into corners of the storage box, filling those corner s aces, and presenting to the enclosed spaces sides which in the aggregate approximate to concentricity with a vertical axis of the box Ideally therefore, cartridges substantially triangular in one cross section, but with two plane surfaces meeting at an angle to fit the box corner, and a third surface concave to the enclosed space, would'best serve the refrigerating purposes of the apparatus, but while an ideal arrangement for keeping a container such as an ice cream can, and its contents, in refrigerated condition would be a refrigerant-containing vessel or assemblage of vessels having in the aggregate an inteto be accurately equidistant from the axis of the enclosed space and therefore from the sides of the container, if that be cylindrical; practical considerations call for the employment of refrigerant vessels or cartridges which preferably have all their surfaces or sides flat. If they are provided each with one concave surfacethey are comparatively ill-adapted to the exigencies either of refrigeration of their contents tween the conflicting ideal requirements is effected. No matter what the shape of the enclosed object to be cooled, the above described arrangement of refrigerant cartridges of which the active inner surfaces approximate in the aggregate to concentricity, is advantageous.

It will be understood that the invention is not limited to the specific embodiment shown, 7

and that various deviations may be made therefrom without departing from the spirit and scope of the appended claims.

What is claimed is 1. A rack for introduction into a refrigerator com artment to support an ice cream can and re rigerating cartridges of triangular prism-form, comprising transversely related base members, each adapted to extend between diagonally opposite corners of the compartment, uprights rising from the base members, adjacent to the corners and adapted to receive the can between them, and rests projecting from the uprights toward the corners and adapted to receive the cartridges, said uprightsbeing adapted to hold the cartridges in the corners and spaced from the can.

2. The combination of a refrigerator compartment with a rack therein for supporting an ice cream can and refrigerating cartridges of triangular prism form, comprising base members, uprights rising from the base members and spaced from thecorners, a ring secured 'to the uprights and adapted for receiving the can, and rests above the base members, projecting from the uprights toward the corners and adapted forsupporting the cartridges in the corners, said uprights being adapted to hold the cartridges in the cornersand spaced from the can.

HENRY C. FOLGER. 

